3780669 has 4 divisors (see below), whose sum is σ = 5040896. Its totient is φ = 2520444.

The previous prime is 3780653. The next prime is 3780709. The reversal of 3780669 is 9660873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3780669 - 2⁴ = 3780653 is a prime.

It is a super-2 number, since 2×3780669² = 28586916175122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3780619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 630109 + ... + 630114.

It is an arithmetic number, because the mean of its divisors is an integer number (1260224).

Almost surely, 2^3780669 is an apocalyptic number.

It is an amenable number.

3780669 is a deficient number, since it is larger than the sum of its proper divisors (1260227).

3780669 is a wasteful number, since it uses less digits than its factorization.

3780669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260226.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 3780669 is about 1944.3942501458. The cubic root of 3780669 is about 155.7840124038.

The spelling of 3780669 in words is "three million, seven hundred eighty thousand, six hundred sixty-nine".